Sail furling apparatus

Details Sail furling apparatus Sail furling apparatus

1977-02-23

1977-12-06

Blix, Trygve M.

Ships

Sail or control means therefor

Reefing and furling

114 90, 114107, B63H 910

Patent

active

040611019

ABSTRACT:
A sail furling apparatus having a fixed core for connection to a wind powered device is disclosed herein. A rotatable sail sleeve having a bore formed therein is rotatably mounted on the fixed core. A double sheet airfoil sail is connected to the rotatable sail sleeve. A boom sleeve is mounted beneath the rotatable sail sleeve and engages the core. A boom is connected to the boom sleeve and is positioned perpendicular to the core, the sail sleeve and the boom sleeve. A freely rotatable eccentric sheath substantially surrounds the sail sleeve. The freely rotatable eccentric sheath has a slot and the airfoil sail passes through the slot. A furling apparatus is used to rotate the sail sleeve to draw the airfoil sail into the eccentric sheath or release it from the eccentric sheath.

REFERENCES:
patent: 1243198 (1917-10-01), McDougall
patent: 2107303 (1938-02-01), Ljungstrom
patent: 3260230 (1966-07-01), Kauert
patent: 3285215 (1966-11-01), Potter
patent: 3332384 (1967-07-01), Potter
patent: 3483840 (1969-12-01), Prolss
patent: 3749042 (1973-07-01), Jackson

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